<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>lua</title>
</head>

<body>
    <button id="btn">抽奖</button>
    <script>
        const btn = document.getElementById('btn');
        btn.onclick = function () {
            fetch('http://localhost:3000/lottery').then(res => res.text()).then((data) => {
                console.log('data: ', data);
                alert(data);
            })
        }
    </script>
</body>

</html>